Method findField

src/document/forms/field-tree.ts:226–228

* Find a field by fully-qualified name.

(name: string)

   * Find a field by fully-qualified name.
   */
  findField(name: string): FormField | null {
    return this.fields.find(f => f.name === name) ?? null;
  }

  /**
   * Find a terminal field by name.